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化学农药对确保农业丰收起着重要作用。随着化学农药的广泛应用,农副产品中出现农药残留,并造成土壤等环境的污染。特别是近年来,害虫发生危害严重,使用农药种类多、数量大,由于不能安全合理使用农药而造成严重污染。针对上述情况,1987～1992年我们从害虫发生严重、使用农药次数多、量大的棉田套种作物及蔬菜、苹果入手,进行残留量普查,探明了几种杀虫剂在作物上农药残留状况,进而
Chemical pesticides play an important role in ensuring agricultural harvest. With the wide application of chemical pesticides, pesticide residues appear in agricultural and sideline products and cause environmental pollution such as soil. Especially in recent years, pests have serious harm, there are many kinds of pesticides used, and they are large in quantity, causing serious pollution due to the insecurity and rational use of pesticides. In response to the above situation, from 1987 to 1992 we started from the pest serious pests, the use of pesticides and more large quantities of intercropped crops and vegetables, apples, carry out a survey of residual amount of pesticides found on the status of pesticide residues in crops ,and then